A teaching tool embedded in PowerPoint that can record video at the core of PPT.
Click the link below to learn and install
https://mix.office.com/
First of all this goods is free, of course based on PowerPoint.
One more Mix tab after installation
It's really recording the slide recording in the leftmost record tab
The Insert screen recording on the right inserts your recorded video file directly in the PPT. (It seems that the teacher who recommended the lecture will record the experiment video before class so that the teaching time can be more controlled)
There are also parts of the website that can be registered via Windows ID (other ways need ladders in the magical country) and uploaded, and can also make some questions for the students to see the effect of the class
There is also an unofficial maintenance of the Chinese website
http://www.officemix.org/
PowerPoint Office Mix Plugin